Stylesheet Selector

CSSSelectors.js

var styleSheets = document.styleSheets,
    totalRules = 0;
  
styleSheets = Array.prototype.slice.call(styleSheets, 0);

styleSheets.forEach(function (stylesheet) {
    if (!stylesheet.cssRules) {
        return;
    }
    
    var rules = Array.prototype.slice.call(stylesheet.cssRules, 0),
        rulesInSheet = rules.length,
        selectorsInSheet = 0;
        
    rules.forEach(function (rule) {
        if (rule.selectorText) {
            selectorsInSheet += rule.selectorText.split(',').length;
        }
    });
    

    console.group();
    console.log("Stylesheet:", stylesheet.href);
    console.log("    Rules:", rulesInSheet);
    console.log("Selectors:", selectorsInSheet);
    console.groupEnd();
});